Simply pull out the plunger, then push in the plunger, and the forced air rushes through the horn and makes a loud noise
Sounds like the aerosol air horns
No disposable Canisters (making it Eco Friendly)
Reusable design allows for infinite use.
Easy to assemble and disassemble
Perfect for sporting events, boating, or emergencies ( as a survival tool, no need to worry about running out of air or problems with the compressed air canister liquefying